Olivetti M28 (BA802 / BA807 / BA808 / BA815 / BA816)

Description

Chips

BIOS 4

Drivers 0

Documentation 1

Logs

Chipset

IBM AT chipset

Sockets

FSB speed

12.5MHz

Form factor

OEM / Proprietary

Dimensions

Empty

Cache

None/Integrated in the CPU

Max RAM size

1MB

RAM type

DIP-16 (1bit)

PSU connector

Empty

Also known as

AT&T PC 6310

I/O ports

Floppy interface

Parallel

Serial

Expansion slots

Empty

Known issues

DALLAS RTC coin cell empty

The motherboard's Real-Time Clock (RTC) chip contains a coin cell that may have drained, causing the loss of CMOS settings. This can result in an inability to save settings, causing system instability or failure to boot. To fix this, the RTC chip can be replaced with an equivalent or repaired by cutting into it and soldering on a new external coin cell holder. Replacement guides are available at https://github.com/necroware/nwX287 or https://github.com/necroware/nw12887, depending on the actual chip used.

Last updated 2025-06-03T20:27:12Z

Board info score is 7.9/10

Chips

-> Chipset part

Intel 82284 (Clock Generator/Ready Interface) Intel 82288 (Bus Controller) (multiple brand) 74LS612 (Memory Mapper) (multiple brand) Discrete Logic Faraday FE2000 (PC CPU Controller IC) Intel 8237A (DMA Controller) Intel 8254 (Programmable Interval Timer) Intel 8259A (Programmable Interrupt Ctrl.)

-> Human Interface

(multiple brand) 8042 (Keyboard Controller)

-> Real-Time Clock

(multiple brand) 6818